During the inauguration of President Barack Obama, Beyoncé’s flawless rendition of The Star Spangled Banner stole the show. Now, some sources are saying the performance could have been too good to be true.

Yesterday, The Washingtonian and others claimed the pop star was lip-syncing, using photos the artist posted to her Instagram account as “proof” that she had pre-recorded the track; The Washingtonian also claimed that the band itself had merely pretended to play its instruments. Today, The London Times published a story claiming to confirm the lip-synching. Now, the New York Post has jumped into the fray, also claiming to have confirmed the rumor. Both outlets reportedly spoke to a representative or representatives for the United States Marine Band, who revealed to the Post that while the band performed the song live, the singer decided to use a pre-recorded track at the last minute:

“All music is pre-recorded for the ceremony because there are so many eventualities and conditions that day,” Kristin DuBois, a rep for the band tells Page Six. “We performed, live, the band. But we received last-minute word that Beyonce was going to use the pre-recorded vocal track. Those were the instructions we were given. We don’t know what the reason why.”

This is not the first time that the mulit-platinum “Single Ladies” singer has been accused of lip syncing. During the 2009 Oscars, Beyonce’s performance with host Hugh Jackman was the subject of much speculation. When asked about it, Oscar officials would only comment to MTV, “As is the case with any live event of this scale and scope, there are always elements of the show that are pre-recorded. But I will not go into detail about which elements were on this show.”